EP0928552B1 - Anordnung zum erkennen des zustandes einer hochdruck-gasentladungslampe beim einschalten - Google Patents
Anordnung zum erkennen des zustandes einer hochdruck-gasentladungslampe beim einschalten Download PDFInfo
- Publication number
- EP0928552B1 EP0928552B1 EP97941863A EP97941863A EP0928552B1 EP 0928552 B1 EP0928552 B1 EP 0928552B1 EP 97941863 A EP97941863 A EP 97941863A EP 97941863 A EP97941863 A EP 97941863A EP 0928552 B1 EP0928552 B1 EP 0928552B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- control unit
- arrangement according
- measurement
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/382—Controlling the intensity of light during the transitional start-up phase
- H05B41/386—Controlling the intensity of light during the transitional start-up phase for speeding-up the lighting-up
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Definitions
- the invention is based on an arrangement for recognizing the State of a high pressure gas discharge lamp when switched on based on the lamp temperature, which in the preamble of claim 1 defined genus.
- the control unit contains a power supply circuit. This is controlled by means of a voltage / current characteristic and regulated so that the lamp operates on a specific, in particular constant power is maintained.
- the power is determined by means of of a wattmeter performed that of a regulated Inverter circuit power supplied from a battery voltage and current flowing determined and from this according to the specified voltage / current characteristic Control signals for the inverter circuit generated.
- at Compliance with constant power for the lamp is the respective Operating point on the so-called performance hyperbola.
- the Vedilis curve is generally specified as a current / voltage curve in the sense of a setpoint curve.
- the Vedilis curve is shown in the "System Specifications for Field Test" of the VEDILIS Eureka Project 273 on page B 1/3 and is specified as a current / voltage characteristic for gas discharge lamps to be used in motor vehicles.
- "Vedilis” stands for " Ve hicle Di scharge Li ght S ystem".
- the lamp voltage U is then measured in the start-up or burning phase and the corresponding lamp current I associated with the respective lamp voltage U is determined from the Vedilis curve.
- This lamp current I then serves as a setpoint for the current control circuit with which the lamp power is regulated to a constant value, for example 35 W.
- This Vedilis curve method is also described in the subsequently published DE-A-1,953,644 in column 2, line 39 to line 58.
- the purpose is to keep the lamp brightness substantially constant even if the temperature of the lamp changes.
- the current flowing in the lamp is raised and the power supplied is regulated in such a way that the desired brightness remains.
- This lamp temperature mentioned here is quite obviously the temperature which arises after the lamp has been switched on and started up during operation, whereupon the lamp voltage inevitably changes. Contrary to what is done in the invention, this document does not show that at all and how the lamp state or the temperature of the lamp is determined when it is switched on, and that additionally the lighting is carried out according to the determined result.
- the high-pressure gas discharge lamp After the high-pressure gas discharge lamp has been ignited, it turns on with a defined overload when light starts up quickly operated so that they get the desired amount of light as quickly as possible emits. For switching on again, generally for switching on the lamp, it is critical whose condition, especially to know the temperature of the lamp. The light start gets better if depending on the prevailing lamp temperature the correct overload is impressed. Size and duration of the Overload depends on the condition of the lamp. Was the lamp For example, switched off for a long time and is therefore cold, then must they operated with a large overload for a long time be as if it was only switched off briefly and thus when Turning it back on is still hot.
- the arrangement according to the invention with the characteristic features of claim 1 has the advantage of the lesser Component expense with equally good, if not significantly better Results of the determination of the lamp status when switched on.
- the state of the high pressure gas discharge lamp can be determined how long the lamp is not known turned on and then turned off.
- the control unit must not while the lamp is off stay on to determine the off time.
- According to the invention is in principle for the detection of Lamp state provided when switching on that the control unit impresses a defined current into the lamp and that it is the voltage drop occurring, the lamp voltage, measures and evaluates, or alternatively, the control unit a defined Applies voltage to the lamp and that it is flowing Lamp current measures and evaluates, and that with both alternatives Control unit starts the light with a defined overload according to the determined condition of the lamp.
- the control unit impressing the current and the associated voltage measurement or the application of the voltage and the associated current measurement and the respective evaluation shortly after switching on the Lamp, especially immediately after the lamp has been ignited. It is particularly useful that after another Embodiment of the invention, the control device, the measuring processes in Load circuit of the lamp performs, as there are therefore no falsifications and does not require any additional components.
- the control unit advantageously stores the measurement result for the respective light start.
- control unit carries out the measurement and evaluation processes several times, especially in quick succession, through and forms from the Results a consolidated value.
- Control unit forms the average as a consolidated value.
- control unit consolidated value or the mean value saved.
- control unit changes the measured variable, especially their slope, evaluates to the current one Determine lamp status.
- a particularly useful, advantageous and flexible Embodiment of the invention includes that in the control unit Microcontroller with memory is provided, with the help of which Measurements can be controlled and the measurement results can be saved.
- the arrangement according to the invention is particularly advantageous and expediently in high-pressure gas discharge lamps used in motor vehicles usable.
- Fig. 1 contains a control unit 3, the necessary at its input terminals 1 and 2 Input energy, for example from the vehicle electrical system or the battery a motor vehicle is supplied.
- a control unit 3 the necessary at its input terminals 1 and 2 Input energy, for example from the vehicle electrical system or the battery a motor vehicle is supplied.
- At the output terminals 4 and 5 provides the control unit for the ignition by one Ignition device 6 of a high-pressure gas discharge lamp required Currents I and voltages U. These values depend on the Operating status of the lamp different. However, it was on it referenced that these values were the same until and before ignition are.
- the arrangement designed according to the invention includes that the control device 3 impresses a defined current I into the lamp 7 and that it measures and evaluates the voltage drop U that occurs, for example at the terminals 4 and 5, or alternatively the control device 3 applies a defined voltage to the lamp 7 applies and that it measures and evaluates the lamp current flowing from terminal 4.
- the control unit 3 then controls the start of the light in accordance with the determined state of the lamp. This measurement process is expediently carried out at a specific point shortly after the lamp 7 is switched on and ignited. It is also advantageous that the voltage and current measurement is carried out in the load circuit of the lamp 7, as a result of which the results are not falsified.
- the control unit 3 stores the measurement result determined by it for the respective light start. In a particularly advantageous way, the control unit 3 can carry out several measurement processes, for example four, repeat immediately one after the other and from this a consolidated value, in particular the mean form. This quasi-secured mean value is then saved and kept ready for further evaluation.
- the measurement and evaluation processes several times, especially briefly consecutively, and if necessary from the results to form storable mean.
- it is possible to carry out the measurement and evaluation such that the Lamp status continuously i.e. is continuously recognizable.
- the course of the measured variable from the control unit 3, in particular whose slope is evaluated to the current Determine lamp status is the control unit 3 with a microcontroller with memory provided with the help of which the measuring processes can be controlled and the Measurement results can be saved.
- the operation of the arrangement according to the invention can now look such that the ignition of the lamp 7 is initiated by the control unit 3 and the ignition device 6.
- the lamp ignites, as shown in Fig. 2, at time t z .
- the voltage U M decreases from the open circuit value U L 21 to a lower value below the operating voltage U B of the lamp 7. If the lamp has not been turned off for a long time and is therefore still warm or hot, the drop in voltage is not as great as is shown by curve section 22. In this case, the operating voltage U B is reached again in a relatively short time. If the lamp was cold when switched on, the drop in voltage is much greater, as is shown by curve section 23. In this case, the operating voltage U B is only reached after a relatively long time.
- a constant current of a defined size is fed in.
- the voltage of the lamp is determined by the control unit 3 by measurement.
- the lamp temperature is inferred from the measured or determined voltage.
- a low measuring voltage U M a cold lamp with a relatively low temperature is inferred, as it corresponds to the curve section 23, and with a high measuring voltage U M , a hot lamp with a high temperature.
- the operating voltage U B can be slightly different for each lamp 7 and it is therefore particularly expedient if this value is stored as a learning value and is taken into account and taken into account when determining the lamp temperature.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Fuel Cell (AREA)
Description
Dies hat absolut nichts mit der Zielsetzung und der Aufgabe vorliegender Erfindung zu tun, welche insbesondere anhand der Temperatur feststellt, wie der Lampenzustand zu Beginn einer Einschaltung der Lampe ist.
- Fig. 1
- schematisch ein Blockschaltbild der erfindungsgemäßen Anordnung, und
- Fig. 2
- schematisch den Verlauf der an der Lampe gemessenen Spannung über der Zeit t bei kalter und warmer Hochdruck-Gasentladungslampe.
Claims (11)
- Anordnung zum Erkennen des Zustandes einer Hochdruck-Gasentladungslampe (7) beim Einschalten anhand der Lampentemperatur, mit einem Steuergerät (3) zur Steuerung und zur Versorgung der Lampe (7) mit Energie,
dadurch gekennzeichnet, daß
das Steuergerät (3)entweder einen definierten Strom (I) in die Lampe (7) einprägt und den dabei auftretenden Spannungsabfall (U) mißt und auswertetoder
das Steuergerät (3) eine definierte Spannung (U) an die Lampe (7) anlegt und den dabei fließenden Lampenstrom (I) mißt und auswertet
und daß
das Steuergerät (3) den Lichtanlauf mit einer definierten Überlast entsprechend dem festgestellten Zustand der Lampe (7) durchführt. - Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Steuergerät (3) das Einprägen des Stromes (I) sowie die zugehörige Spannungsmessung bzw. das Anlegen der Spannung (U) sowie die zugehörige Strommessung und das jeweilige Auswerten jeweils kurz nach dem Einschalten der Lampe (7), insbesondere unmittelbar nach dem Zünden (t2) der Lampe (7), durchführt.
- Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Steuergerät (3) das Meßergebnis für den jeweiligen Lichtanlauf speichert.
- Anordnung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das Steuergerät (3) die Meßvorgänge im Lastkreis der Lampe (7) durchführt.
- Anordnung nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß das Steuergerät (3) die Meß- und Auswertvorgänge mehrmals, insbesondere kurz hintereinander, durchführt und aus den Ergebnissen einen konsolidierten Wert bildet.
- Anordnung nach Anspruch 5, dadurch gekennzeichnet, daß das Steuergerät (3) als konsolidierten Wert den Mittelwert bildet.
- Anordnung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß das Steuergerät (3) den konsolidierten Wert bzw. den Mittelwert speichert.
- Anordnung nach Anspruch 5, 6 oder 7 dadurch gekennzeichnet, daß das Steuergerät (3) die Meß- und Auswertvorgänge derart vornimmt, daß der Lampenzustand stufenlos, d.h. kontinuierlich erkennbar ist.
- Anordnung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß das Steuergerät (3) den Verlauf der Meßgröße, insbesondere deren Steigung, auswertet, um den aktuellen Lampenzustand festzustellen.
- Anordnung nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß im Steuergerät (3) ein Mikrokontroller mit Speicher vorgesehen ist, mit dessen Hilfe die Meßvorgänge steuerbar und die Meßergebnisse speicherbar sind.
- Anordnung nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß sie bei in Kraftfahrzeugen verwendeten Hochdruck-Gasentladungslampen (7) verwendbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29616655U DE29616655U1 (de) | 1996-09-26 | 1996-09-26 | Anordnung zum Erkennen des Zustandes einer Hochdruck- Gasentladungslampe beim Einschalten |
DE29616655U | 1996-09-26 | ||
PCT/DE1997/001936 WO1998014035A1 (de) | 1996-09-26 | 1997-08-27 | Anordnung zum erkennen des zustandes einer hochdruck-gasentladungslampe beim einschalten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0928552A1 EP0928552A1 (de) | 1999-07-14 |
EP0928552B1 true EP0928552B1 (de) | 2002-08-07 |
Family
ID=8029677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97941863A Expired - Lifetime EP0928552B1 (de) | 1996-09-26 | 1997-08-27 | Anordnung zum erkennen des zustandes einer hochdruck-gasentladungslampe beim einschalten |
Country Status (7)
Country | Link |
---|---|
US (1) | US6356040B1 (de) |
EP (1) | EP0928552B1 (de) |
JP (1) | JP2001503907A (de) |
KR (1) | KR20000048605A (de) |
DE (2) | DE29616655U1 (de) |
ES (1) | ES2182117T3 (de) |
WO (1) | WO1998014035A1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6676754B1 (en) * | 2000-06-30 | 2004-01-13 | 3M Innovative Properties Company | Coating apparatus and methods of applying a polymer coating |
US6442339B1 (en) * | 2001-05-04 | 2002-08-27 | Coltene/Whaledent, Inc. | Operation of halogen lamp for curing of material |
WO2004006632A1 (ja) * | 2002-07-02 | 2004-01-15 | Mitsubishi Denki Kabushiki Kaisha | 放電灯点灯装置 |
JP4826388B2 (ja) | 2006-08-25 | 2011-11-30 | パナソニック電工株式会社 | 高圧放電灯点灯装置及び照明器具 |
US9178415B1 (en) | 2009-10-15 | 2015-11-03 | Cirrus Logic, Inc. | Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter |
US8487591B1 (en) | 2009-12-31 | 2013-07-16 | Cirrus Logic, Inc. | Power control system with power drop out immunity and uncompromised startup time |
US8866452B1 (en) | 2010-08-11 | 2014-10-21 | Cirrus Logic, Inc. | Variable minimum input voltage based switching in an electronic power control system |
US9510401B1 (en) | 2010-08-24 | 2016-11-29 | Cirrus Logic, Inc. | Reduced standby power in an electronic power control system |
WO2012167127A1 (en) | 2011-06-03 | 2012-12-06 | Cirrus Logic, Inc. | Control data determination from primary-side sensing of a secondary-side voltage in a switching power converter |
US9351356B2 (en) | 2011-06-03 | 2016-05-24 | Koninklijke Philips N.V. | Primary-side control of a switching power converter with feed forward delay compensation |
EP2792037A2 (de) | 2011-12-14 | 2014-10-22 | Cirrus Logic, Inc. | Multimodale rücklaufsteuerung für einen schaltenergiewandler mit dimmvorrichtung |
US9520794B2 (en) | 2012-07-25 | 2016-12-13 | Philips Lighting Holding B.V | Acceleration of output energy provision for a load during start-up of a switching power converter |
CN105247956A (zh) | 2013-03-07 | 2016-01-13 | 皇家飞利浦有限公司 | 使用开关功率变换器的次级侧传导时间参数向负载提供能量 |
US9735671B2 (en) | 2013-05-17 | 2017-08-15 | Cirrus Logic, Inc. | Charge pump-based drive circuitry for bipolar junction transistor (BJT)-based power supply |
WO2014186765A1 (en) | 2013-05-17 | 2014-11-20 | Cirrus Logic, Inc. | Single pin control of bipolar junction transistor (bjt)-based power stage |
WO2015017315A1 (en) | 2013-07-29 | 2015-02-05 | Cirrus Logic, Inc. | Compensating for a reverse recovery time period of a bipolar junction transistor (bjt) in switch-mode operation of a light-emitting diode (led)-based bulb |
WO2015017317A2 (en) | 2013-07-29 | 2015-02-05 | Cirrus Logic, Inc. | Two terminal drive of bipolar junction transistor (bjt) for switch-mode operation of a light emitting diode (led)-based bulb |
US9214862B2 (en) | 2014-04-17 | 2015-12-15 | Philips International, B.V. | Systems and methods for valley switching in a switching power converter |
US9325236B1 (en) | 2014-11-12 | 2016-04-26 | Koninklijke Philips N.V. | Controlling power factor in a switching power converter operating in discontinuous conduction mode |
US9504118B2 (en) | 2015-02-17 | 2016-11-22 | Cirrus Logic, Inc. | Resistance measurement of a resistor in a bipolar junction transistor (BJT)-based power stage |
US9603206B2 (en) | 2015-02-27 | 2017-03-21 | Cirrus Logic, Inc. | Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stage |
US9609701B2 (en) | 2015-02-27 | 2017-03-28 | Cirrus Logic, Inc. | Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power converters |
KR102364962B1 (ko) | 2021-09-01 | 2022-02-18 | 김봉건 | 절삭용 공구 및 이를 포함하는 절삭 공작기계 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US4162429A (en) * | 1977-03-11 | 1979-07-24 | Westinghouse Electric Corp. | Ballast circuit for accurately regulating HID lamp wattage |
US4240009A (en) | 1978-02-27 | 1980-12-16 | Paul Jon D | Electronic ballast |
JPH01292796A (ja) * | 1988-05-20 | 1989-11-27 | Toshiba Lighting & Technol Corp | 放電灯点灯装置 |
DE4017415C2 (de) * | 1989-06-02 | 1994-04-14 | Koito Mfg Co Ltd | Schaltungsanordnung zum Betrieb einer Hochdruck-Entladungslampe für einen Fahrzeugscheinwerfer |
DE4015398A1 (de) * | 1990-05-14 | 1991-11-21 | Hella Kg Hueck & Co | Verfahren und einrichtung zum starten einer hochdruckgasentladungslampe in kraftfahrzeugen |
IT1247762B (it) * | 1990-10-22 | 1994-12-30 | Marelli Autronica | Dispositivo di controllo per una lampada a scarica di gas per l'impiego a bordo di un autoveicolo |
US5365152A (en) * | 1991-09-09 | 1994-11-15 | Matsushita Electric Industrial Co. Ltd. | Apparatus for controlling the power to a discharge-lamp |
BE1006978A3 (nl) * | 1993-04-02 | 1995-02-07 | Koninkl Philips Electronics Nv | Schakelinrichting. |
JP3606909B2 (ja) * | 1994-07-12 | 2005-01-05 | 三菱電機株式会社 | 交流放電灯点灯装置 |
JP3197166B2 (ja) * | 1994-09-02 | 2001-08-13 | 株式会社小糸製作所 | 放電灯の点灯回路 |
DE19534864A1 (de) * | 1995-09-20 | 1997-03-27 | Bosch Gmbh Robert | Steuergerät für den schnellen Lichtanlauf einer Hochdruck-Gasentladungslampe |
DE19535663A1 (de) * | 1995-09-26 | 1997-03-27 | Bosch Gmbh Robert | Verfahren und Anordnung zur Leistungssteuerung einer Hochdruck-Gasentladungslampe |
DE19536644A1 (de) * | 1995-09-30 | 1997-04-03 | Bosch Gmbh Robert | Analoges Funktionsnetzwerk zur Vorgabe einer Kennlinie |
-
1996
- 1996-09-26 DE DE29616655U patent/DE29616655U1/de not_active Expired - Lifetime
-
1997
- 1997-08-27 KR KR1019990702539A patent/KR20000048605A/ko not_active Application Discontinuation
- 1997-08-27 DE DE59707928T patent/DE59707928D1/de not_active Expired - Lifetime
- 1997-08-27 EP EP97941863A patent/EP0928552B1/de not_active Expired - Lifetime
- 1997-08-27 US US09/269,605 patent/US6356040B1/en not_active Expired - Fee Related
- 1997-08-27 WO PCT/DE1997/001936 patent/WO1998014035A1/de not_active Application Discontinuation
- 1997-08-27 ES ES97941863T patent/ES2182117T3/es not_active Expired - Lifetime
- 1997-08-27 JP JP51512898A patent/JP2001503907A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE29616655U1 (de) | 1998-02-05 |
KR20000048605A (ko) | 2000-07-25 |
US6356040B1 (en) | 2002-03-12 |
ES2182117T3 (es) | 2003-03-01 |
DE59707928D1 (de) | 2002-09-12 |
EP0928552A1 (de) | 1999-07-14 |
WO1998014035A1 (de) | 1998-04-02 |
JP2001503907A (ja) | 2001-03-21 |
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